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Drag radial air pressure
#1063247
08/26/11 10:32 AM
08/26/11 10:32 AM
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Joined: Mar 2009
Posts: 1,058 bigfork mn
dragram440
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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I am thinking of running a street class for labor day weekend and have to switch my tires to mickey thompson drag radials. I have never ran drag radials so I have no idea where to even start with the air pressure. I am running alot smaller tire so I might have some hooking issues anyways. I am going from hoosier QTP 28x14.50x15 to a mickey drag radial 275-60-15. The car hooks really good with the QTP's at 13.5 to 14 psi.
67' charger 499 RB
10.57 at 127
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Re: Drag radial air pressure
[Re: dragram440]
#1063248
08/26/11 11:37 AM
08/26/11 11:37 AM
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Joined: Feb 2004
Posts: 6,257 acworth / N. georgia - south e...
cheapstreetdustr
master
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master
Joined: Feb 2004
Posts: 6,257
acworth / N. georgia - south e...
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the best place i know to start from is.. find a place to safely spin the tires.. like an industrial complex ect...if you do it on concrete thats even better.. find a clean section of road surface and do a light burnout..spin the tires while rolling out. then get out and look at the imprint on the ground.. you want as wide as possible of an inprint. with an even coloring as it moves to the center of the marks/patch. if the center is much lighter than the outlines.. then you need more air...add 1/4 to 1/8h pounds of air and repeat..
if you have a dark center of the patch and it fades as it reaches the outer edges..you have too much air.. lower in the same amount.. you are looking for a evenly dark patch across the entire black mark left on the ground. once you have this jot down all of your psi's this should give you a really good base to work/start from right down your psi's and temps if you have that tool...it helps alot. and start at that point at the track.. thats what i would recomend... this works for slick tires too.. cheapst
365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured [image][/image]
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Re: Drag radial air pressure
[Re: BradH]
#1063250
08/26/11 12:06 PM
08/26/11 12:06 PM
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Joined: Mar 2009
Posts: 1,058 bigfork mn
dragram440
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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They are on 10" wheels. car weighs 3800 lbs with me in it.
67' charger 499 RB
10.57 at 127
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Re: Drag radial air pressure
[Re: BradH]
#1063255
08/26/11 12:50 PM
08/26/11 12:50 PM
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Joined: Mar 2009
Posts: 1,058 bigfork mn
dragram440
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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The good thing about this class is it is the five fastest classes for the the show so befor these classes the track get a complete prep. Traction compound all the way down, This is the best the track gets. This is at muscle car shootout at Brainerd international raceway. I did try a couple suspension changes, I hope they work!
67' charger 499 RB
10.57 at 127
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Re: Drag radial air pressure
[Re: 1967dartgt]
#1063259
08/26/11 10:57 PM
08/26/11 10:57 PM
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Joined: Mar 2009
Posts: 2,475 Sydney,Australia
tex013
top fuel
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top fuel
Joined: Mar 2009
Posts: 2,475
Sydney,Australia
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18 1/2 psi on my 68 satellite,8"rim
Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive
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